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RAR, UDF, ZIPX files and more,</small><small> over 200 archive types
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            <td colspan="1" rowspan="1" style="vertical-align: top;"> <br>
            <h1 style="text-align: center;"><big><big><big><a
 name=".zipx_extension"></a>What is ZIPX file format, WinZip archives<br>
            </big></big></big></h1>
            <br>
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                  <ul>
                    <li>
                      <p><a href="#zipx_specifications">WHAT ARE ZIPX
FILES, WINZIP ARCHIVE FORMAT<br>
                      </a></p>
                    </li>
                  </ul>
                  </td>
                  <td style="vertical-align: top; width: 128px;">
                  <h2><img title="WinZip's ZIPX archives"
 alt="zipx extension" src="file-format/archive-format.png"
 style="width: 96px; height: 96px;" align="right"></h2>
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 style="background-color: rgb(255, 255, 255); vertical-align: top;">
            <div style="text-align: left; color: rgb(0, 0, 0);">
            <h2><big><big><big><a name="zipx_specifications"></a><a
 href="#.zipx_extension">What are ZIPX files, WinZip archive format</a></big></big><br>
            </big></h2>
            </div>
            <br>
            <div style="text-align: left;"> </div>
            <div style="text-align: left;"> </div>
            <a name="what_is_zipx_file"></a>ZIPX file extension
designates, <a
 href="https://support.winzip.com/hc/en-us/articles/115011394208-What-is-a-Zipx-File-">by
definition<img title="ZIPX definition" alt="zipx file format definition"
 src="free-rar/extractor.png"
 style="border: 0px solid ; width: 12px; height: 10px;"></a>, a ZIP
file employing a compression method different than Deflate or Deflate64.<br>
The extension was introduced by WinZip team,
starting from
WinZip 12.1 (released as trialware program on 13 September 2008), in
order to differentiate files created with new compression algorithms
from ZIP files compressed with classic Deflate algorithm - as legacy
applications would be not able to read new files.<br>
            <br>
            <a name="zipx_standard"></a>WinZip's ZIPX standard is based
on PKZip's <a href="zip-file-format.html">ZIP format specifications</a>,
with only difference of employing newer <span
 style="font-weight: bold;">data compression</span>
algorithms - <span style="font-weight: bold;">BZip2</span>, <span
 style="font-weight: bold;">LZMA</span>, <span
 style="font-weight: bold;">PPMd </span>and others
(superseding
classic Deflate / Deflate64 algorithm) - <a
 name="zipx_pre_compression_filters"></a>and employing custom <span
 style="font-weight: bold;">pre-compression filters</span>
(WavPack, MP3 and JPEG filter) to improve compression of images and
other
media data structures.<br>
This results in zipx providing
higher, <a href="file-compression-performances.html">improved
compression ratio</a> compared to classic zip/Deflate, at cost of
higher
computational cost,
comparable with compression ratio of formats like RAR,
ACE, and
in some cases 7-Zip's 7Z / XZ files - modern archiving formats also
relying in LZMA and PPMd -family compression algorithms and multimedia
precompressors.<br>
            <br>
The possibility of employing alternate compression methods is anyway
already featured in standard ZIP format definition, so using an
alternate designation as ZIPX is merely a choice and does not
(technically) define a different, independent standard.<br>
            <span style="font-weight: bold;">File extension</span>
modification from zip to zipx was intended to avoid
ambiguity with users (openly marking it as new type, with new
extension) and prevent older archivers to try to handle the new zipx
standard as it was a classic zip file, failing to support its newer
features.<br>
            <br>
            <a name="zipx_aes_encryption"></a>ZIPX files supports
new AES-based WinZip's <span style="font-weight: bold;">AE encryption</span>
(128 bit and 256 bit), which is also part of ZIP standard - and
optionally, for legacy support only, old
ZipCrypto (Zip 2.0) cryptography.<br>
Like for ZIP files, WinZip provides its custom <span
 style="font-weight: bold;">file spanning</span> scheme for splitting
ZIPX archives (Z01 extension).<br>
            <a name="max_zipx_file_size_limit_specifications"></a>As in
current Zip format revision, Zipx
format is limited to maximum <span style="font-weight: bold;">4
billion files per archive</span> (2^32)
and to <span style="font-weight: bold;">16 EB as max file size</span>
(2^64), either for the single input files
and for the total size of the archive - as ZIP64 standard zip archives
- likely exceeding user's needs and limits of current filesystems
implementation.<br>
            <br>
PeaZip can <a href="zipx-files-software.html">create, open and extract
ZIPX
files</a> with Bzip2, LZMA, LZMA2,
and PPMd (technically ZIPX files by definition); custom WavPack, MP3
and JPEG pre-compression filters are currently unsupported (both for
reading and for writing).<br>
To add support to WavPack in PeaZip, you can use <a target="_blank"
 href="https://www.tc4shell.com/en/7zip/wavpack7z/">WavPack7z<img
 title="ZIPX WavPack" alt="WavPack standard"
 src="free-rar/extractor.png"
 style="border: 0px solid ; width: 12px; height: 10px;"></a> plugin
(free of charge, closed source, hence cannot be provided with PeaZip
packages), simply extracting the 32 or 64 bit plugin in PeaZip's
folder, in \res\7z\Codecs path.<br>
            <h2><img title="ZIPX format creation" alt="zipx file format"
 src="add-to-archive.png" style="width: 100px; height: 45px;"></h2>
            <h2><img title="ZIPX format extraction"
 alt="zipx format features" src="extract-archive.png"
 style="width: 112px; height: 45px;"></h2>
            <br>
            <a name="zipx_vs_rar"></a>On <a
 href="peazip-compression-benchmark.html">data compression
benchmark</a>
page you
can compare how .zpix format fares, in terms
of compression ration and compression / extraction computation speed,
with mainstream formats
such as .7z, .rar, and .zip, testing various software implementations
(PeaZip, WinRar, WinZip).<br>
            <br>
            <a name="zipx_file_format_specifications"></a>External
online resources about .zipx archives: <a target="_blank"
 href="http://en.wikipedia.org/wiki/Zip_%28file_format%29">ZIPX<img
 title="ZIPX wiki" alt="zipx file format" src="free-rar/extractor.png"
 style="border: 0px solid ; width: 12px; height: 10px;"></a> Wikipedia
page, <a target="_blank" href="http://kb.winzip.com/kb/entry/7">WinZip<img
 title="WinZip's .zipx specs" alt=".zipx type"
 src="free-rar/extractor.png"
 style="border: 0px solid ; width: 12px; height: 10px;"></a> Knowledge
Base entry for ZIPX standard.<br>
            <br>
            <table
 style="background-color: rgb(72, 136, 248); width: 100%; text-align: left;"
 border="0" cellpadding="0" cellspacing="1">
              <tbody>
                <tr style="color: rgb(245, 245, 245);">
                  <td colspan="1" rowspan="1"
 style="vertical-align: top; background-color: rgb(72, 136, 248);">
                  <table style="width: 100%; text-align: left;"
 border="0" cellpadding="0" cellspacing="0">
                    <tbody>
                      <tr>
                        <td style="vertical-align: top; width: 24px;">&nbsp;&nbsp;
                        <br>
                        </td>
                        <td style="vertical-align: top; width: 430px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 430px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 24px;">&nbsp;&nbsp;
                        <br>
                        </td>
                      </tr>
                      <tr>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                        <td
 style="vertical-align: top; color: rgb(245, 245, 245); width: 430px;">
                        <table style="width: 100%; text-align: left;"
 border="0" cellpadding="0" cellspacing="0">
                          <tbody>
                            <tr>
                              <td
 style="width: 50%; color: rgb(245, 245, 245); vertical-align: middle;">
                              <h3><big><big><big><big><big><a
 name="zipx_specs"></a>.ZIPX</big></big></big></big></big></h3>
                              </td>
                              <td
 style="width: 50%; color: rgb(245, 245, 245); vertical-align: middle;">WinZip
team, 2008<br>
max 4 billion files per archive<br>
16 EB maximum file size (archive, input files) <br>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                        </td>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                        <td
 style="vertical-align: top; color: rgb(245, 245, 245); width: 430px;">
                        <h4><big>SPEED <img
 alt="zipx compression features" title="ZIPX compression speed"
 src="zip-files/star3.png" style="width: 80px; height: 16px;"></big></h4>
                        <a name="zipx_vs_7z"></a>Zipx format features
average speed: using PPMd or
LZMA compression algorithms rather than Deflate, speed is comparable
with WinRar' RAR or 7-Zip's 7Z rather than with classic ZIP compression.<br>
                        </td>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                      </tr>
                      <tr>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 430px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 430px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                      </tr>
                      <tr>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                        <td
 style="vertical-align: top; color: rgb(245, 245, 245); width: 430px;">
                        <h4><big>COMPRESSION
RATIO <img alt="zipx vs rar vs 7z" title="ZIPX compression ratio"
 src="zip-files/star4.png" style="width: 80px; height: 16px;"></big></h4>
Zipx format features very good compression: PPMd, and LZMA algorithms
(and use of WavPack and JPEG
pre-compression filters) provides compression ratio comparable to RAR
and 7Z formats, so the format offers a flexible solution for fast
archiving / backup (Deflate) and powerful slower compression (PPMd,
LZMA)<br>
                        </td>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                        <td
 style="vertical-align: top; color: rgb(245, 245, 245); width: 430px;">
                        <h4><big>ADVANCED
OPTIONS <img alt="zipx specifications" title="ZIPX format options"
 src="zip-files/star4.png" style="width: 80px; height: 16px;"></big></h4>
Zipx features good advanded options, and it is designed to employ new
AES-based WinZip AE encryption standard. It however lacks
recovery records option
available for competing RAR format.<br>
                        </td>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                      </tr>
                      <tr>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 430px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 430px;"><br>
                        </td>
                        <td style="vertical-align: top; width: 24px;"><br>
                        </td>
                      </tr>
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            <table style="text-align: left;" border="0" cellpadding="6"
 cellspacing="0">
              <tbody>
                <tr>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="7z-file-format.html">WHAT IS 7Z FILE FORMAT</a><br>
                  </small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="gzip-files.html">WHAT ARE GZ COMPRESSED FILES</a><br>
                  </small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="paq-file-format.html">PAQ FILE FORMAT</a><br>
                  </small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="bzip2-file.html">WHAT ARE BZ2 COMPRESSED FILES</a><br>
                  </small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="paq-files-compression-utility.html">EXTRACT PAQ FILES</a><br>
                  </small></td>
                </tr>
              </tbody>
            </table>
            <small><small>&nbsp;</small></small><br>
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 cellspacing="0">
              <tbody>
                <tr>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="iso-image-files.html">WHAT ARE ISO DMG UDF FILES</a><br>
                  </small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="what-is-rar-file.html">WHAT IS RAR FILE FORMAT</a><br>
                  </small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="tar-file-format.html">WHAT ARE TAR TBZ TGZ TXZ ARCHIVES</a><br>
                  </small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="wim-files.html">WHAT IS MICROSOFT WIM IMAGING FORMAT</a><br>
                  </small></td>
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            <small><small>&nbsp;</small></small><br>
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              <tbody>
                <tr>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="zip-file-format.html">WHAT IS ZIP FILE FORMAT</a><br>
                  </small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="what-is-zip-file.html">WHAT IS A COMPRESSED ARCHIVE FILE</a><br>
                  </small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="archive-file-formats-comparison.html">COMPARISON OF ARCHIVE
FORMAT TYPES</a></small></td>
                  <td style="vertical-align: top;"><small><br>
                  </small></td>
                  <td
 style="vertical-align: top; background-color: rgb(240, 239, 238);"><small><a
 href="convert-files.html">CONVERT ZIPX FILES</a></small></td>
                </tr>
              </tbody>
            </table>
            <p><a href="peazip-help-faq.html">FAQ</a>
&gt; Archive file types &gt; What is ZIPX file extension<br>
            </p>
Topics about what is ZIPX file format, native WinZip archives type
extension, what are Zipx files features and specifications,
characteristics,
limits, advantages and disadvantages compared to other archival types,
especially pre-existing PKZip zip standard and closest competitors
like rar and 7z:<br>
            <table style="width: 100%; text-align: left;" border="0"
 cellpadding="6" cellspacing="0">
              <tbody>
                <tr>
                  <td
 style="vertical-align: top; width: 25%; font-style: italic;"> what is
zipx file format, <br>
zipx format features, <br>
WinZip's zipx files
specifications,<br>
advantages of zipx format,<br>
features of zipx format<br>
what is best archive format,<br>
what is Deflate algorithm,<br>
JPEG precompression filter, <br>
WinZip archives, </td>
                  <td
 style="vertical-align: top; width: 25%; font-style: italic;">faq
about .zipx extension, <br>
what
are zipx archives,<br>
features of zipx files,<br>
zipx format characteristics,<br>
rar vs zipx format,<br>
what are best archive formats,<br>
Deflate64, BZip2, LZMA, PPMd compression
algorithms,<br>
WinZip native format,<br>
                  </td>
                  <td
 style="vertical-align: top; width: 25%; font-style: italic;"> zip vs
zipx format specs, <br>
zipx standard,<br>
winzip archive format features,<br>
what is zipx extension,<br>
7z compared to zipx format,<br>
what is WinZip proprietary format,<br>
WavPack precompression,<br>
free WinZip alternative software,<br>
winzip zipx features and limitations, </td>
                  <td
 style="vertical-align: top; width: 25%; font-style: italic;"> what is
a zipx file,<br>
AE encryption standard,<br>
zipx specs,<br>
WinZip's zipx files features<br>
what is zipx file type,<br>
zipx precompression filters,<br>
zip with LZMA, PPMd compression,<br>
BZip2 algorithm in zipx format,<br>
how zipx compares to rar format<br>
                  </td>
                </tr>
              </tbody>
            </table>
            </td>
          </tr>
        </tbody>
      </table>
      <table
 style="background-color: rgb(255, 255, 255); margin-left: auto; margin-right: auto; width: 960px; text-align: left;"
 border="0" cellpadding="24" cellspacing="0">
        <tbody>
          <tr>
            <td style="vertical-align: top;">Tag Cloud<br>
            <span class="wrd free-rar1" id="extract-zipx-archives"> <a
 href="zipx-files-software.html">extract zipx archives</a></span> <span
 class="wrd free-rar4" id="open-zipx-files"> <a
 href="zipx-files-software.html">open ZIPX files</a></span> <span
 class="wrd free-rar3" id="what-is-zipx-file-type"> <a
 href="zipx-file-format.html">what is ZIPX file type</a></span> <span
 class="wrd free-rar0" id="winzip-zipx-archives"> <a
 href="zipx-file-format.html">WinZip ZIPX files</a></span> <span
 class="wrd free-rar4" id="zipx-extension"> <a
 href="zipx-file-format.html">ZIPX extension</a></span> <span
 class="wrd free-rar1" id="compress-files-folders"> <a
 href="how-to-compress-files-folders.html">create new archive</a></span><br>
            <span class="wrd free-rar0" id="compress-separately"> <a
 href="how-to-zip-files-separate-archives.html">create separate archives</a></span>
            <span class="wrd free-rar1" id="extract-selected"> <a
 href="how-to-extract-selected-files-from-archive.html">extraction of
selected files</a></span> <span class="wrd free-rar2"
 id="open-rar-zip-zipx-files"> <a
 href="how-to-open-rar-tar-zip-files.html">how to open rar zip zipx
files</a></span> <span class="wrd free-rar1" id="7-zip-7z-file-type"> <a
 href="7z-file-format.html">7-Zip 7Z files</a></span> <span
 class="wrd free-rar2" id="winace-ace-files"> <a
 href="ace-file-format.html">WinAce ACE file format</a></span> <span
 class="wrd free-rar0" id="file-encryption"> <a
 href="encrypt-files.html">apply password to archive</a></span><br>
            <span class="wrd free-rar1" id="arc-files"> <a
 href="arc-file-format.html">ARC
file format</a></span> <span class="wrd free-rar2"
 id="bz2-file-compression-utilitys"> <a href="bzip2-utility.html">BZ2
compression utility</a></span> <span class="wrd free-rar3"
 id="file-backup-utility"> <a href="backup-files.html">free backup
software</a></span> <span class="wrd free-rar1" id="what-are-cab-files">
            <a href="cab-file-format.html">what are Microsoft
CAB packages</a></span> <span class="wrd free-rar0" id="file-hashing">
            <a href="verify-checksum-hash.html">compute hash value</a></span>
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 href="convert-files.html">convert zipx file to zip</a></span><br>
            <span class="wrd free-rar3" id="create-zip-files"> <a
 href="zip-files-utility.html">create ZIP files</a></span> <span
 class="wrd free-rar2" id="free-zipx-software"> <a href="index.html">free
archiver utility</a></span> <span class="wrd free-rar1"
 id="permanent-data-erase"> <a href="secure-delete.html">permanent
data erase</a></span> <span class="wrd free-rar0"
 id="extract-rar-zip-zipx-files"> <a
 href="how-to-extract-rar-zip-archives.html">extract RAR
ZIP ZIPX files</a></span> <span class="wrd free-rar1"
 id="split-files-utility"> <a href="file-split.html">file splitter
utility</a></span> <span class="wrd free-rar2"
 id="free-file-encryption-software-download"> <a href="index.html">download
free encryption software</a></span> <br>
            <span class="wrd free-rar1"
 id="windows-zipx-files-extractor-utility"> <a
 href="download-installer-p-windows.html">windows zipx extractor</a></span>
            <span class="wrd free-rar0"
 id="free-rar-tra-zip-zipx-utility"> <a href="index.html">free RAR TAR
ZIP ZIPX files utility</a></span> <span class="wrd free-rar2"
 id="what-are-gzip-files"> <a href="gzip-files.html">GZip
files</a></span> <span class="wrd free-rar1" id="what-are-iso-files"> <a
 href="iso-image-files.html">ISO disk image format</a></span> <span
 class="wrd free-rar3" id="open-encrypted-files"> <a
 href="extract-encrypted-files.html">open encrypted files</a></span> <span
 class="wrd free-rar2" id="portable-file-archiver"> <a
 href="peazip-portable.html">portable file archiver</a></span><br>
            <span class="wrd free-rar1" id="free-zipx-opener-64bit"> <a
 href="peazip-64bit.html">free zipx opener (win64)</a></span> <span
 class="wrd free-rar3" id="what-are-rar-files"> <a
 href="what-is-rar-file.html">RAR
file format</a></span> <span class="wrd free-rar2"
 id="free-rar-files-extraction-utility"> <a href="free-rar.html">free
RAR files extraction utility</a></span> <span class="wrd free-rar0"
 id="remove-duplicate-files"> <a href="duplicates-hash-checksum.html">remove
duplicate files</a></span> <span class="wrd free-rar1"
 id="what-are-sfx-self-extracting-archives"> <a
 href="self-extracting-archives.html">what are sfx archives</a></span> <span
 class="wrd free-rar2" id="tar-files"> <a href="tar-file-format.html">TAR
archive format</a></span><br>
            <span class="wrd free-rar0" id="wim-file-format-features"> <a
 href="wim-files.html">what is WIM
imaging format</a></span> <span class="wrd free-rar3"
 id="zip-file-format-specifications"> <a href="zip-file-format.html">ZIP
file format specs</a></span> <span class="wrd free-rar1"
 id="zip-vs-zipx-format-comparison"> <a
 href="archive-file-formats-comparison.html">zip vs zipx</a></span> <span
 class="wrd free-rar4" id="zipx-files"> <a href="zipx-file-format.html">ZIPX
file format</a></span> <span class="wrd free-rar0"
 id="what-is-compressed-file"> <a href="what-is-zip-file.html">what is
a compressed file</a></span> <span class="wrd free-rar1"
 id="linux-zipx-extraction-utility"> <a href="peazip-linux.html">linux
zipx extraction software</a></span> <br>
            <span class="wrd free-rar1"
 id="most-powerful-file-compression-format"> <a
 href="peazip-compression-benchmark.html">what are the
most powerful file compression tools and formats</a></span> <span
 class="wrd free-rar3" id="7z-file-compression-utility"> <a
 href="7zip-files-utility.html">7z file compression utility</a></span> <span
 class="wrd free-rar0" id="free-ACE-files-extractor"> <a
 href="ace-files-utility.html">free ACE files extractor</a></span> <span
 class="wrd free-rar3" id="max-size-limitation-zipx-files"> <a
 href="zipx-file-format.html">max ZIPX file size</a></span><br>
            <span class="wrd free-rar3" id="free-zip-software-utility">
            <a href="zip-files-utility.html">free ZIP software</a></span><span
 class="wrd free-rar1" id="most-powerful-file-compressors-benchmark"> <a
 href="maximum-compression-benchmark.html">most powerful file
compressors</a></span> <br>
            </td>
          </tr>
        </tbody>
      </table>
      <br>
      </td>
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            <td style="vertical-align: top; width: 25%;"><small> <img
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            <a name=".zipx_files"></a>DOWNLOADS<br>
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Windows 32 bit</a><br>
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Portable</a><br>
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Linux/BSD</a><br>
            </small></td>
            <td style="vertical-align: top; width: 25%;"><small><img
 alt="zipx features compared to rar" src="titles.png"
 style="width: 129px; height: 2px;"><br>
            <a name="what_are_zipx_files"></a>SUPPORT<br>
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Asked Questions</a><br>
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 style="width: 129px; height: 2px;"><br>
            <a style="color: rgb(0, 0, 0);" name="zipx_archive_type"></a>DONATE<br
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